Control of Furnace Bottom Rising during Carbonization of Titanium-rich BF slag
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摘要: 根据高钛型高炉渣高温碳化工艺过程的反应机理及非牛顿流体学原理，分析认为造成炉底上涨的根本原因是由于碳化工艺过程中TiC颗粒的沉积。提出通过控制绝对冶炼时间、冶炼温度以及控制配碳量等工艺参数可以减少TiC的沉积，进而使整个炉渣均匀，黏度一致，出炉顺畅，有效解决高钛型高炉渣高温碳化工艺过程炉底上涨的问题。Abstract: The reaction mechanism of high temperature carbonization of titanium-rich BF slag and principles of non-Newtonian fluids mechanics were employed to analyze the cause of furnace bottom rising.The results demonstrate that the primary cause is the deposition of TiC particles in carbonization process of titanium-rich BF slag.To reduce the deposition of TiC,the method of controlling absolute smelting time,smelting temperature and carbon addition is proposed.As a result,uniform BF slag with consistent viscosity is obtained,and smooth tapping is achieved.The problem of furnace bottom rising in high temperature carbonization of titanium-rich BF slag is effectively resolved.
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Key words:
- titanium-rich BF slag /
- carbonization process /
- carbide slag /
- TiC /
- furnace bottom rising /
- absolute smelting time
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